SynWire WW – Litz & Special Wires (HF-) Litz Wire & Special Cables

Litz wire is characterized by its high flexibility. The risk of conductor breakage caused by bending is significantly lower compared with solid wire conductors with the same cross section. The lengths of lay mainly determines the formability of litz wires. Length of lay is the distance a single strand needs to complete a 360° turn. The longer the length, the more flexible the litz wire is. However, should the length of lay be too long the dimensional stability and roundness decreases.
Both, construction and applications of litz wires are very variable. Apart from the round geometry, Synflex also provides so called press/ HF press litz with rectangular profiles to improve the filling factor of components.
HF litz wires’ main purpose is to decrease the so called skin effect which leads to lower current density inside than outside of alternating current carrying conductors. To keep this effect as marginal as possible the surface is increased by using many insulated strands.
Due to the many different combinations (number of strands, insulation, extra insulation etc.) litz wire constructions are always individual and tailor-made to the customer requirements. There is no standard application. Each demand is targeted to the end product.

Litz wire is an electrical conductor made of twisted single wires. Apart from the conventional litz made of bare wire, there are high-frequency litz wires (HF litz wire) with enamelled single wires.
In addition to the enamelled insulation it is possible to provide an extra insulation by wrapping with paper and/ or films, covering with yarns or sheathing with extruded synthetic materials. Those extra insulations increase the litz wire’s electrical and mechanical protection.